Abstract
The restricted three-body problem is studied in the post-Newtonian framework. The primaries are assumed oblate radiant sources. The perturbed location of the L-1 point is computed, and a series form of the location of this point is obtained as a new analytical result. To introduce a semianalytical view, a Mathematica 9 program is constructed so as to draw the location of L-1 versus the mass ratio mu is an element of (0, 0.5) taking into account one or more of the considered perturbations. All the obtained illustrations are analyzed.